Figure 4 | Scientific Reports

Figure 4

From: Entropy and order in urban street networks

Figure 4

Evolution of the street network of Dundee since AD 1600.

(a), Power-law length distributions (inset: log-log plots and calculated tail entropies, S) for the time periods shown in d. L denotes street length in metres. (b), Orientation histograms, rose diagrams and entropies, S. (c), Graphs showing maximum street length (ML) as a function of orientation. The shaded zones indicate the process of densification; the non-shaded (white) zones indicate the process of network expansion. (d), General evolution of the street network since 1600 and the reference times for the illustrations in a–c. (source: OS MasterMap ITN Layer [GML geospatial data], Coverage: UK, Ordnance Survey (GB), Using: EDINA Digimap Ordnance Survey Service, <http://edina.ac.uk/digimap>, Downloaded: September 2011). Map composed in ESRI ArcGIS 9.3.1.

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